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Anthropic Ships Claude Fable 5.1, More Than Doubling Its Predecessor on Key Benchmark
DecryptSeptember 1, 2026 · 7:35 PM2 min read
Fable 5.1 and its restricted sibling Mythos 5.1 arrive three months after export controls forced Anthropic to pull Fable 5 offline for 18 days
Originally published on Decrypt
Fable 5.1 and its restricted sibling Mythos 5.1 arrive three months after export controls forced Anthropic to pull Fable 5 offline for 18 days
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